JP2010531681A - Pole with shock absorber - Google Patents

Abstract

For example, a pole (23) for trekking, downhill skiing, hiking or Nordic skiing, including a pole grip (28) and at least three nested tubes (25, 26, 27). And a pole having a pole end (29). Two adjacent tube sections are adjustable with respect to each other. The pole (23) of the present invention has an impact absorbing device (1) having a compression spring device (35), and an axial pin (2) fixed in the axial direction to the second pipe portion (26) is It is guided by a guide sleeve (10) which is held in a fixed manner so as to be rotatably fixed to one pipe part (25).

Description

  The present invention relates to, for example, trekking, skiing, hiking, or Nordic skiing, and relates to a pole having a pole grip, a pole shaft composed of at least three nested tube portions, and a pole tip. In either case, the two adjacent tube sections can be adjusted relative to each other. The pole of the present invention is an impact absorbing device having a guide sleeve, which is held in a form that is rotatably fixed to the first pipe part and guides an axial pin fixed in the axial direction to the second pipe part. Have.

  The prior art discloses various poles having shock absorbers. For example, those described in DEU29813601 and CH680771A5, these two poles only absorb relatively hard impacts. EP1435805B1 has a specially arranged compression spring, which absorbs even lower impacts, springback does not occur too suddenly and has less recoil compared to those described in the above two specifications A pole with an impact absorbing device is disclosed.

  Accordingly, one object of the present invention is a pole having a simple structure with an impact absorbing device, having as small a weight and packing size as possible, and a rocking performance as good as possible. It is to provide a pole that can be stored in a way that takes up as little space as possible.

  This object is achieved, inter alia, by, for example, trekking, skiing, hiking or Nordic walking poles having a handgrip, a pole shaft, a pole tip and at least three nested tubes. Two adjacent pipe sections can be adjusted to each other. The pole of the present invention has an impact absorbing device including a guide sleeve and a compression spring device that are rotatably held on the first tube portion, and is fixed to the second tube portion in the axial direction. The shaft pin is guided in the guide sleeve. Here, the first tube portion is the lowermost tube portion of the pole shaft, and the second tube portion is the second tube portion from the bottom.

  A characteristic of the present invention is that, in a pole having three pipe portions, a compression spring device disposed between two pipe portions in the central tube portion or the upper portion is usually connected to a lower pipe portion or a lower pipe portion. There is to move between two pipe parts. The bottom tube of the three nested tubes here has the smallest diameter and becomes the innermost tube when convolved or with minimum packing dimensions . The diameter of the uppermost tube portion is larger than the diameter of the second tube portion from the middle or bottom, and the diameter of the second tube portion from the middle or bottom is larger than the diameter of the lowermost tube portion. For example, in the case of a pole having four pipe sections, preferably at least one compression spring device is arranged at the bottom of the four pipe sections, and at the same time the bottom pipe section has four pipe sections. The innermost part of the department.

  In another aspect, and in general, in the design of a pole (e.g., a pole having three nested portions) where the top tube has the smallest diameter, the compression spring device described herein is The clamp device may be disposed on the uppermost pipe portion with the clamp device facing downward. This provides advantageous swingability and minimal packing dimensions.

  By moving the compression spring device to the lowermost tube portion, less material is required for the tube portion, thereby reducing the weight and overall size of the pole. At the same time, as a result, the center of gravity of the pole moves further downward, resulting in an improvement in the swingability of the pole. By moving the compression spring device from the central tube section, the three tube sections can be almost completely nested within each other, and the length of the pole is approximately two-thirds of its packing size. Decrease.

  Although the pole described in EP 1435805B1 certainly provides improved shock absorption, placing a relatively expensive compression spring device in the center of the pole makes it impossible to fully nest the pole Means that. This is because the shock absorbing device in the outer pipe part of the two pipe parts is in the middle of the inner pipe part. In such a design, the installed spring unit must also be reliably taken into account as the length of the tube. In this design, the bottom or innermost tube hits the spring unit, affecting the packing dimensions of the nested pole. In the production of nested poles with three pipe parts of different diameters, for example, when the shock absorber is placed in the central pipe part, the standard length used for the pole without the shock absorber It is also necessary to pay the additional costs required to produce the non-pipe section.

  Moving the spring unit to the bottom, i.e. the bottom or the inner tube, frees up the space previously occupied to install the spring in the middle, i.e. the central tube. According to the present invention, when the compression spring device is arranged at the bottom and the inner two pipe parts, since the length adjusting mechanism is usually not arranged at all, the inside of the pipe part can be used as desired. Furthermore, the movement according to the invention means that the weight of the pole is small. This is because a several centimeter portion that had to be used as an installation space in the central tube portion is unnecessary. In particular, the compression spring device can be more elaborate and / or smaller in diameter thanks to its installation in the lowest tube. This is because less material is needed to fill the bottom or innermost nested tube section with the smallest tube diameter. This also involves a reduction in the weight of the installed compression spring device. Furthermore, according to the design of the present invention, it is possible to use a pole having an impact absorbing device whose length is the same as that of a pole having no impact absorbing device, and to attach the compression spring device to the central tube portion. When placed, there is no additional cost for special lengths that must be paid because longer tubing is required. As a result, all three nested tube portions of the pole shaft can be made the same length.

  In the case of the embodiment of the invention as described above, the lowermost tube has a central axial cavity or blind hole for introducing the guide sleeve.

  According to a first preferred embodiment of the present invention, the bottom tube part has a smaller diameter than the second tube part from the bottom, preferably the second tube part from the bottom is adjacent to it. The diameter is smaller than the third pipe part from the bottom.

  According to a further preferred embodiment of the invention, the entire compression spring device is mounted or arranged on a guide sleeve. The guide sleeve preferably has at least a bottom region and a central region mounted on the lowest tube. Here, it is advantageous if the guide sleeve is approximately 60-90%, preferably approximately 80% of the length installed in the lowermost tube.

  According to a further preferred embodiment of the invention, the compression spring device comprises at least one coiled compression spring and / or at least one elastic spring. Various series or parallel arrangements of coiled compression springs and elastic springs are possible. Particularly good shock absorption behavior is achieved when the compression spring device has a coiled spring and an elastic spring at each of its two axial ends in a series arrangement. It is conceivable that the compression spring device is detachable or that the spring is pre-stressed. Furthermore, it is also possible for the compression spring device to have springs having different spring characteristics, for example, different hardness levels or different spring constants. In view of the characteristics of the arrangement of the compression spring, the invention of EP1435805B1 is clearly included in the disclosure of this specification. The spring movement of the pole of the present invention is substantially 5 to 15 mm, preferably 7 to 12 mm, particularly preferably 8 to 10 mm. The difference in spring characteristics between the coiled compression spring and the elastic spring means that, for example, non-linear shock absorption is possible. The same applies to expansion, ie springback behavior.

The pole shaft preferably has two, three or four, particularly preferably three tubes, which are adapted to nest one inside the other. According to a further preferred embodiment, the bottom tube of the pole of the present invention has a diameter of 10 to 14 mm, preferably 12 mm. The second tube from the bottom is advantageously 12 to 16 mm in diameter, preferably 14 mm, and the third tube from the bottom is 14 to 18 mm, preferably 16 mm in diameter. According to a further preferred embodiment, in the design according to the invention, it is possible for all the pipe sections to be of equal length.

  On the upper side of the guide sleeve, a central piece may be arranged on the shaft pin coaxially with the compression spring device. This central piece is preferably made of plastic or metal and can be pressed, screwed or injection molded onto the shaft pin. It can also function as a clasp for an adjusting mechanism that can also be placed above the compression spring device at the same time, and can also function as an anti-blocking means. However, it also serves, for example, as a tube spacer or clasp.

  As an alternative to or in addition to the central piece, an additional shock-absorbing member, preferably an elastic ring, particularly preferably an O-ring made of rubber ring or elastic material, is compressed on the shaft pin over the guide sleeve. It can be arranged coaxially with respect to the spring device. If a central piece is present, the additional shock absorbing member is preferably arranged below and adjacent to the central piece. The elastic ring is not necessarily required for the function of the spring system, but this additional shock absorbing member has the purpose of absorbing the shock at the end of the pole with noise mitigating action. Without such a shock absorbing member, for example, when the insert piece on the lowermost tube part collides with the central piece, the metal parts in the transition region existing between the two pipe parts collide with each other. When it fits, an unpleasant noise will occur in the pressure part of the pole.

  The guide sleeve preferably has a clasp, preferably an annular shoulder, between the upper region and the lower region. The upper edge portion of the lowermost tube portion collides with the annular shoulder. The upper, middle and bottom portions of the guide sleeve are considered to occupy substantially one third of the length of the guide sleeve, but the upper region protruding from the lowermost tube portion is the central region and the lower portion. It is preferably smaller than the region. At its bottom end, the upper region preferably has an annular shoulder against which the upper edge of the lowermost tube part can hit. This shoulder may be integrally formed or fixed in the upper region of the guide sleeve.

  According to a further preferred embodiment of the invention, the guide sleeve preferably has in its central region at least one axial slot, preferably two opposite slots. Here, the transverse pin is arranged perpendicular to the pole axis of the guide sleeve, preferably above the compression spring device and at least partly inside the slot. In that case, it can move axially the slot between the upper and lower clasps. Furthermore, it is preferred that the lateral pins can protrude through the bottom end of the axial pin.

  At least one extension device is arranged on the shaft pin, coaxially with the compression spring device and preferably above the compression spring device. Regarding the spreading device, the invention of EP 1450906 B1 is expressly incorporated herein. According to a further preferred embodiment, the lowermost tube part having an impact absorbing device is axially clamped to the second tube part from the bottom by means of an extension device. The extension device has an extension element having an inner cone that can be forcibly divided radially and an outer cone that extends in the opposite direction and is accommodated axially within the extension element, and an axial direction With an adjustment screw facing The adjustment screw is rotatably held in the lowest tube section and is operatively connected to the internally threaded hole of the internal element. The inner cone of the extension element is preferably open towards the bottom tube, and preferably the extension element is preferably fixed at one end on the guide sleeve, particularly preferably in the guide sleeve. For a narrow axial movement, preferably between the bottom inner tube top clasp on the central insert placed coaxially on the inserted insert piece or on the guide sleeve and the top clasp at the free end of the adjusting screw Is held in.

  According to a further preferred embodiment of the invention, the inner cone is formed from two parts.

  However, the inner cone can be formed as a single part, or it can have an axial slot that opens at the top and bottom and passes through the inner cone. As a result, for example, the inner cone can be replaced if there is any indication of wear. This is because the cone can be clamped radially on the shaft pin not only in the axial direction on the shaft pin but also in a state where the fixing means is fixed. For this purpose, the inner cone may have, for example, a film hinge or some other connecting means for the two cone halves. In the presence of the extension device, the insert piece or the upper end of the guide sleeve is provided with a clasp for the extension element if there is no central piece or additional elastic shock absorbing element or these two parts. May be. For the next installation of the inner cone, in addition to the slotted or two-part embodiment, the film hinge is placed so that the inner cone passes over the head of the fixed screw head or other fixing means. It may be designed to swing through.

  In the case of the pole according to the invention with an extension device, the shaft pin can have a thread only in the upper region, preferably in the region where the extension device is installed. The head of the shaft pin is preferably integrally formed. However, it may also be releasably fixed on the shaft pin, for example with a set nut or screw. Separately attached heads that make up the end of the shaft pin are preferably exposed to high loads to provide the effect of an integrally formed head in order to provide an abutment shoulder that can be exposed to high loads. It is fixed by the connecting method of the extension device, which is generated retroactively. If the head is formed in one piece, that is, if the shaft pin is integrated with the head, when assembling, the inner cone is screwed to the shaft pin from below before the shaft pin is introduced into the guide sleeve. Can be considered. In the case of a detached head, the slot can be replaced later by removing the head and attaching the inner cone via the free upper end at that time.

  When a coiled compression spring is provided, the compression spring device preferably has at least one stub that protrudes from one end of the coiled compression spring and has a protruding portion. When the coiled compression spring and the elastic spring are arranged in series, it is advantageous if the protrusion of the stub is directly adjacent to the elastic spring and prevents the elastic spring from penetrating the coiled compression spring. In such a case, to some extent, the stub is disposed between the coiled compression spring and the elastic spring, and the two types of springs are separated in the axial direction by at most a small region of the stub protrusion.

  In assembly, first, the compression spring device is inserted into the guide sleeve. It is advantageous if there is a storage element on the compression spring device. The storage element is open upward, preferably substantially cup-shaped, into which a shaft pin can be inserted. The insert piece can then preferably be arranged on the guide sleeve, which partly engages the guide sleeve in the axial direction. And similarly, it has the center opening part for accommodating a shaft pin. It is advantageous if the insert piece has at least one nose, preferably two noses or an annular nose, on the part projecting on the guide sleeve. The annular nose automatically latches into the corresponding opening or at least one cut in the guide sleeve. In order to insert the lateral pin into the guide sleeve and slot, preferably two opposite slots, in the bottom tube, the through opening at the bottom end of the axial pin is finally located in the slot It is preferable that the shaft pin receives a force from above. In that case, the transverse pin is pushed into the through-openings of the slot and the axial pin and preferably to the second slot located oppositely located. Thus, the pole is also slightly stressed in the uncompressed position. At the same time, the transverse pin prevents the compression spring from breaking upward and moves the compression spring device axially within the slot. After the lateral pin is inserted, the guide sleeve can be inserted into the blind hole in the lowermost tube.

  Furthermore, the axial pin can be formed in two parts, and the two parts can be coupled via a coupling part. However, it is preferred to design the axial pin as one baht. This is because this simplifies assembly. In such a case, the axial pin designed as one baht has a passage (through passage). The axial pin is preferably 0.3 to 1 cm in diameter, preferably 0.4 to 0.7 cm.

  Further preferred embodiments of the present invention are described in the dependent claims.

FIG. 1 is two schematic views of the shock absorber according to the first embodiment of the present invention in an uncompressed state, and FIGS. 1a) and 1b) are two views of the shock absorber rotated 90 degrees. Indicates. 2 is a cross-sectional view in two axial directions of the shock absorber shown in FIG. 1, FIG. 2a) is a cross-sectional view along the axis AA, and FIG. 2b) is a cross-sectional view along the axis BB. FIG. 3 is two schematic views showing the shock absorbing device according to the first preferred embodiment of the present invention in a compressed state, and FIGS. 3a) and 3b) are two views rotated 90 degrees in the circumferential direction. Show. 4 is a cross-sectional view of two shock absorbers shown in FIG. 3, FIG. 4 a) is a cross-sectional view of the axis CC, and FIG. 4 b is a cross-sectional view of the axis DD. FIG. 5 is a schematic diagram of three other exemplary embodiments of the shock absorber of the present invention in an uncompressed state, FIG. 5a) is a shock absorber without a central piece, and FIG. 5b) FIG. 5c) shows a shock absorber without a central piece or rubber ring. FIG. 6 is a schematic view of a pole having three nested tube portions.

The invention will now be described in more detail according to exemplary embodiments and with reference to the drawings.
In order to illustrate the invention described above, exemplary embodiments are described below. It should be noted that these embodiments are for the purpose of describing and recording the feasibility of the invention and are not intended to limit the general concept of the invention as defined in the appended claims. As described below, modifications to the exemplary embodiments are well known to those skilled in the art and are also protected by the claims.

  FIG. 1 is two schematic views showing the shock absorbing device according to the first preferred embodiment of the present invention in an uncompressed state, each rotated 90 degrees relative to each other. In the uncompressed state, the shock absorber 1 has a length L1. The length L1 corresponds to the distance from the upper end of the head of the fixing means 4 to the lower end of the guide sleeve 10. The tube is not shown in this figure. The illustrated exemplary embodiment of the shock absorber 1 of the present invention is rotatably mounted in a blind hole in the lower tube portion 25 of the pole shaft 24 or in the axially central cavity portion 20. A guide sleeve 10 in which the shaft pin 2 is engaged through its free end. On the guide sleeve, an extension device 32 is shown coaxially with the guide sleeve. This extension device has an extension element 3, an internal element 3 and an internal cone 5 as seen in the cross-sectional view of FIG. The shaft pin 2 has a male screw at least at its upper end and is provided with a fixing means 4, preferably a head 4 fixed in the axial direction by a screw. The head 4 forms an upper clasp (top stop) for the extension element 3. The bottom clasp of the extension element 3 is formed in FIG. 1a by a central piece 8, which is for example formed integrally on the shaft pin 2 or screwed on or placed on it. Or clamped or welded. An additional shock-absorbing element 9, in this case an elastic O-ring, is arranged below the central piece 8 in FIG. The shock absorbing element plays a role of suppressing noise at the end of the pole 23 that has been shock-absorbed. When the pole 23 is not shock-absorbed, that is, as shown in FIGS. 1 a and 1 b, a part of the shaft pin 2 is exposed under the extension element or the central piece 8 and the elastic ring 9. Thereafter, the compression spring device 35 is disposed in the guide sleeve 10 in the downward direction.

  The extension element 3 has at least one axial opening 6, preferably two opposing axial openings 6. The inner element 33 is arranged coaxially inside the extension element 3, but by at least one axial rib 7, preferably two ribs 7 located on the inner element 33 relative to each other. The opening 6 is engaged. This opening 6 is not visible in FIG. This is because the shock absorber rotates 90 degrees with respect to FIG. 1 a, and in the illustrated exemplary embodiment, at the position rotated 90 degrees from the opening 6, there are other openings located in the extension device 3. do not do. In the example shown in FIGS. 1 and 2, the extension device is not extended.

  FIG. 1 a shows the slot 12. The slot 12 is disposed in the central portion 10 b of the guide sleeve 10 with a substantially U-shaped cross section, and forms a top clasp 13 and a bottom clasp 14. A transverse pin 15 passing through the axial pin 2 at its bottom end is arranged radially at least partially in the slot 12 between these clasps 13 and 14 to be engaged with the guide sleeve. The As shown in FIGS. 1 and 2, that is, in a state where the pole 23 is not compressed or shock-absorbed, the lateral pin 15 is positioned on the upper clasp 13 of the slot 12 of the guide sleeve 10. The insert piece 11 is positioned on or fixed to the guide sleeve 10 or in the upper region 10a thereof. At its bottom end, via an area supporting at least one nose 39, preferably an annular nose 39, which automatically latches into the notch of the guide sleeve radially inwardly, this insert piece is shown in section in FIG. As can be seen, the guide sleeve 10 or its upper region 10a is engaged. The axial pin 2 houses its bottom end 37 in the receiving element 16. The housing element 16 has a substantially cup shape and is mounted on the guide sleeve 10. The receiving element 16 thus forms an intermediate element between the compression spring device 35 and the shaft pin 2. In FIG. 2 a, the transverse pin 15, shown perpendicular to the pole axis S, first passes through the wall of the guide sleeve 10 and through the shaft pin 2 when viewed from the outside to the inside. And through the opposite wall of the guide sleeve 10.

  1 to 5 do not show any of the pole shaft tubes 25, 26 and 27. However, it is preferable that the guide sleeve 10 is attached so as to be rotatable to the contact shoulder 22 of the lowermost tube portion. The abutment shoulder 22 thus forms an upper clasp at the upper edge of the lowest tube portion 25. Since the compression force acts on the compression spring device 35 mounted on the lowermost tube portion 25, the guide sleeve 10 is formed integrally, and the contact shoulder 22 is also formed in the upper region 10 a of the guide sleeve 10. It is advantageous that they are formed integrally with each other. However, in order for the insert piece 11 to form an upper clasp for the lowermost tube portion 25, the insert piece 11 must still be reasonably firmly fixed to the guide sleeve 10.

  2a and 2b, the compression spring device is formed as a series of three springs. In the compression spring device, the elastic spring 17 is disposed above and below the two shaft ends of the coiled compression spring device 18, respectively. The elastic spring 17 and the coiled compression spring 18 have a substantially T-shaped stub 34 disposed between them. The stub partially engages the coiled compression spring 18, thus preventing the elastic spring 17 from penetrating the coiled compression spring 18. The disc-shaped region of the T-shaped stub defines the distance between the elastic spring 17 and the coiled compression spring 18.

  In particular, the central piece preferably has an annular nose 39 in the axial direction and an annular protrusion 40 in the radial direction, although it is shown particularly effectively in the sectional views 2a and 2b. ing. The annular nose 39 serves to stop the central piece 8 below the inner cone 5. The indentation in the central piece caused by the nose 39 provides a clearance that allows the extension device to move to a certain degree in the axial direction over a narrow range.

  3 and 4 show one exemplary embodiment of the shock absorber 1 of the present invention in a compressed state. In contrast to what is shown in FIG. 1, in this case there is no portion of the shaft pin exposed between the extension element 3 and the engagement piece 11. The elastic ring 9 is on the engagement piece 11. In the compressed position, the transverse pin 15 is substantially disposed on the bottom clasp 14 of the slot 12 of the guide sleeve. Only a part of the lower end 37 of the shaft pin 2, which is accommodated in the receiving element 16, through which the lateral pin 15 passes, prevents the lateral pin 15 from coming into direct contact with the bottom clasp 14. In the compressed state, the impact absorbing device 1 has a length L1 'that is shorter than the length L1 of the uncompressed impact absorbing device. Typically, the length reduction associated with the transition from the unabsorbed state to the shock-absorbed state is approximately 5 to 15 mm, preferably 7 to 12 mm, particularly preferably 8 to 10 mm. .

  FIG. 5 shows three other exemplary embodiments of the shock absorber 1 in the uncompressed state. Here, the shock absorbing device 1a shown in FIG. 5a does not have any additional shock absorbing elements 9. The shock absorber of FIG. 5b does not have a central piece 8, and the shock absorber 1c of FIG. 5c does not have any of these elements 8 and 9. Therefore, the length L2 of the non-compressed shock absorber 1a in FIG. 5a is shorter than the length L1 of the non-compressed shock absorber 1 shown in FIG. The length L3 of the non-compressed shock absorber 1b shown in FIG. 5b is further shorter than the length L2 of the non-compressed shock absorber 1a, and the length of the non-compressed shock absorber 1c. L4 is shorter than the length L3 of the shock absorber 1b in an uncompressed state.

  FIG. 6 is a schematic view of the pole 23. Here, the pole 23 is shown as a ski pole only as an example. As already mentioned above, the pole 23 of the present invention may also be, for example, a trekking pole, a hiking pole, a Nordic ski pole or the like. According to this exemplary embodiment, the illustrated pole shaft 24 has three tube portions 25, 26, 27, which are two adjacent tube portions 25 and 26, and 26 and 27 nested within each other. It is in the shape. As a result, the length of the pole 23 can be adjusted. A pole end 29 is disposed at the bottom end of the pole 23 and may have a pole basket 30 thereon, if desired. In the case of Nordic or hiking poles, the pole end 29 can also be configured as a buffer with or without spikes.

  According to FIG. 6, it is preferable that the diameter of the lowermost tube portion 25 among the three tube portions 25, 26, and 27 forming the pole shaft 24 is the smallest. It is possible that the pole shaft 24 includes three or more pipe portions. The diameter of the uppermost tube portion 27 disposed immediately below the pole grip 28 is preferably the largest. However, it is also conceivable that the second pipe part 26 from the bottom has a larger diameter than the uppermost pipe part 27. This is conceivable, for example, in order for the pole 23 to achieve improved swing performance. In order to fold the pole in a nested manner to the smallest possible packing dimension, it is advantageous for the tube part to have a small diameter when viewed from above. It is also possible for each of the tube portions 25, 26, 27 to have a different diameter. Typically, the diameter of the bottom region of one tube is smaller than the diameter of the upper region of the same tube. If appropriate, the pole grip 28 may have a hand strap 31 secured thereto, or a coupling mechanism for the fixable hand strap 31. The pole shaft 24 typically has a collar surrounding them in the transition region between the two tube portions 25 and 26, 26 and 27. In the present invention, in the case of such a pole, the shock absorbing device 1 is disposed between the pipe portions indicated by 25 and 26. That is, the guide sleeve 10 is introduced into the upper end of the lowermost tube portion 25.

DESCRIPTION OF SYMBOLS 1 Damper, shock absorbing device 1a Shock absorbing device without 9 1b Shock absorbing device without 8 1c Shock absorbing device without 8 or 9 2 Axial pin 3 Extension element 4 2 head 5 Internal cone 6 3 axial opening 7 5 axial ribs 8 central piece 9 additional shock absorbing element, rubber ring 10 guide sleeve 10a 10 upper region 10b 10 central region 10c 10 bottom region 11 insert piece 12 10 axial slot 13 12 first Clasp 14 12 Second Clasp 15 12 Lateral Pin 16 2 Housing Element 17 Elastic Spring 18 Coiled Compression Spring 19 2 Opening 20 10 Axial Cavity, Blind Hole 21 Axial Opening, Groove 22 10a clasp, abutting shoulder 23 pole 24 pole shaft 25 bottom tube 26 second from bottom Or center tube portion 27 third tube portion from the bottom or top tube portion 28 pole grip 29 pole end 30 pole basket 31 hand strap 32 extension device 33 internal element 34 stub 35 compression spring device 36 34 protrusion 37 11 nose 38 2 bottom end 39 8 annular nose 40 8 annular protrusion L1 1 uncompressed length L1 ′ 1 compressed length L2 1a uncompressed length L3 1b Uncompressed length L4 1c uncompressed length S Pole shaft

Claims (17)

  For example, trekking, skiing, hiking, nordic ski poles, with at least three nested tubes of pole shaft (24) with pole grip (28) and pole end (29), each adjacent The two pipe parts are adjustable with respect to each other and have a shock absorbing device (1) with a guide sleeve (10) and a compression spring device (35) rotatably fixed to the first pipe part, In the pole (23) in which the shaft pin (2) fixed in the axial direction to the tube portion is guided in the guide sleeve (10), the first tube portion is the lowermost tube portion (25). The pole (23), wherein the second pipe part is the second pipe part (26) from the bottom.   The lowermost tube portion (25) is smaller in diameter than the second tube portion (26) from the bottom, and preferably, the second tube portion (26) from the bottom is adjacent thereto. Pole (23) according to claim 1, characterized in that it has a smaller diameter than the third pipe part (27) from the bottom.   3. A pole (23) according to any one of the preceding claims, characterized in that the entire compression spring device (35) is mounted on the guide sleeve (10).   The guide sleeve (10) has at least a lower region (10c) and a central region (10b) mounted on the lowermost tube portion (25). The pole (23) according to 2.   5. The compression spring device (35) according to claim 1, characterized in that it comprises at least one coiled compression spring (18) and / or at least one elastic spring (17). Paul (23).   The compression spring device (35) has a coiled compression spring (18) and an elastic spring (17) arranged in series at each of two axial ends thereof. The pole (23) according to any one of 5 to 5.   7. Pole (23) according to any one of the preceding claims, characterized in that the pole shaft (24) has three or four pipe parts (25, 26, 27).   A pole (1) according to any one of the preceding claims, characterized in that a central piece (8) is arranged on the upper side of the guide sleeve (10) coaxially with the shaft pin (2). 23).   On the upper side of the guide sleeve (10), an additional shock absorbing element (9), preferably an elastic ring, particularly preferably a rubber ring, is coaxial with the compression spring device (35) and is connected to the shaft pin (2). Pole (23) according to any one of the preceding claims, characterized in that it is arranged on top.   The guide sleeve (10) preferably has a clasp (22), preferably an annular shoulder, between the upper region (10a) and the lower region (10b), the bottom tube (25) being 10. A pole according to any one of claims 1 to 9, characterized in that it abuts at its upper end.   Said guide sleeve (10) has at least one axial slot (12), preferably two opposite slots (12), preferably in its central region (10b), in said guide sleeve (10) A transverse pin (15) is arranged perpendicular to the pole axis (S), preferably above the compression spring device (35) and at least in part of the slot (12), the transverse pin 11. (15) according to any one of the preceding claims, characterized in that the slot (12) can move axially between the top clasp (13) and the bottom clasp (14) inside the slot (12). The pole (23) described.   13. Pole (23) according to claim 12, characterized in that the lateral pin (15) passes through the bottom end of the axial pin (2).   The bottom tube (25) is 10 to 14 mm in diameter, preferably 12 mm, the second tube from the bottom (26) is preferably 12 to 16 mm, preferably 14 mm, and 13. The third tube part from 1 to 12, characterized in that it has a diameter of 14 to 18 mm, preferably 16 mm, preferably all pipe parts (25, 26, 27) are of equal length. Pole (23) according to any one of the above.   At least one extension device (32) is arranged on the shaft pin (2), coaxially with the compression spring device (35) and preferably above the compression spring device (35). Item 14. The pole (23) according to any one of items 1 to 13.   The lowermost tube portion (25) having the impact absorbing device (1) can be axially clamped to the second tube portion (26) from the bottom by the extension device (32), and the extension A device (32) has a spreading element (3) with a radially separable inner cone (5), an outer cone extending in the opposite direction and is accommodated axially movable in said spreading element (3) An inner element (33) and rotatably coupled to the lowermost tube section (25), coupled to be operable in an internally threaded cavity of the inner element (33), An adjusting screw (4) oriented in the axial direction, the inner cone (5) of the extension element (3) opening towards the bottom tube part, the extension element (3) Is preferably the guide sleeve (10), particularly preferably at one end An insert piece (11) firmly fixed to the id sleeve (10), or a bottom inner tube upper clasp on a central piece (8) disposed coaxially on the upper side of the guide sleeve, and the adjusting screw (4) 15. A pole (23) according to claim 14, characterized in that it is held axially, preferably in a narrow range, between the upper clasp at the free end of).   The inner cone (5) is characterized in that it has at least one axial slot formed in one or two parts, passing through it and opening at the top and bottom. A pole (23) according to any one of claims 14 and 15.   6. The compression spring device (35) according to claim 5, characterized in that it has at least one stub (34) protruding at one end of the coiled compression spring (18) and having a protrusion (36). Paul (23).

Images